Schematic for the MC34063 Boost Demonstration Board h 9/9/2003 MC34063 Evaluation Board Design Example Boost Regulator (3.3V to 12V@50mA)(Leaded Version) R801, 1.0, 1/4W R802, 1.5, 1/4W R803, 1.5, 1/4W P801 Vin (+3.3) Gnd D801 1N5819 R804 100 8 Drive Collector Switch Collector 1 7 Switch Emitter 2 Ipk Sense 6 Vcc Timing Cap. 3 5 Feedback C801 100uF 25V L802 Prov. L801 100uH C802 0.1uF R807 Prov. Ground 4 C803 680pF IC801 MC34063AP1 R808 Prov. R805 21.5K, 1% R806 2.49K, 1% Low Current Applications Q801 R807 R808 Out Out Short Short 1K High Current Applications MPS651 TO-92 Q801 (Prov.) FB801 (Prov. for FB) C804 220uF 16V C805 Prov. C806 0.1uF P802 Vout (+12V) Gnd